angular - 无法从打字稿中的数组中删除元素

Question

我有字符串数组

我想要做的是我想在 oneArr 和 twoArr 中找到 dataArr 的匹配元素并想要删除它。

这是我尝试过的代码，但它不起作用：

dataArr = ["1","3","9"];
oneArr  = ["1","2","5"];
twoArr  = ["4","9"];

 updateData(dataArr){
 for (let index = 0; index < dataArr.length; index++) {

            let orgIndx = oneArr.findIndex(dataArr[index]);
            oneArr.splice(orgIndx,1);

            let orgIndx1 = twoArr.findIndex(dataArr[index]);
            twoArr.splice(orgIndx1,1);

}
console.log("oneArr = "+oneArr);
console.log("twoArr = "+twoArr);

我在哪里做错了请帮忙

标签： angularfor-looplogic

Answer 1

filter如下 使用

var dataArr = ["1","3","9"];
var oneArr  = ["1","2","5"];
var twoArr  = ["4","9"];

oneArr = oneArr.filter( e => dataArr.indexOf(e) == -1);
twoArr = twoArr.filter( e => dataArr.indexOf(e) == -1);

console.log("oneArr = "+oneArr);
console.log("twoArr = "+twoArr);